Bending a road at 90 degrees for a modular road system?
hatinacat2000's solution is great, but this was really bugging me and I had to find out what I was doing wrong.

My main mistake was having the centre of my road at 0,0 and also the minor mistake of having doubles in there from the array.

It's easier just to show an image of where the road should be. The empty axis is at 0,0.